Nonglare lens



Patented duly l5, i924.

LSLSS T Fri noNGLARn-LENS.

Application led March 12, 1923. Serial No. 624,335.

To all whom t may concern.'

Be it known that l, BERTRAM S. Nami-rr,

a Vcitizen of the United States, residing' at Sacramento, county of Sacramento, State `t of California, have invented certain new` and useful Improvements in Nonglare Lenses; and I do declare the following to be a full, clear, and exact description of .the same, reference being had to the accompanyl0 ing drawings, and to the characters of ref-A erence marked thereon, which form a part of this application.

This invention relates to improvements in lenses for headlights, especially those of moand concentrate the same on the road ahead of the vehicle, doing away with the upwardly projecting beams which are the such glare being very evident in a great many headlights'now in use,and a source of annoyance to thoseforced to look at the lights and the direct cause of many accidents. Y

At the same time, the necessary side-light on the road, by which the driver can see the curbing or edge of the road is vmaintained to an efficient degree, and the device is so constructed that there are no, dark places or shadows between the light thrown 4ahead and that thrown to the sides, such as are very lfrequently noticed with various lenses.

Another object isto provide a lens structure in which plain glass may be used, and

tor vehicle's,`the principal objectbeing to pro. vide a lens, applicable to any standard. ,forml of headlight and reflector, which will act toV throw the light from the lamp downwardly cause of glare in the eyes of persons ahead,`

erence indicate corresponding parts in the several views.

' Fig. l isa sectionalview yof the lens, showing the same installed kin a headlight.

Fig,i 2 is an inner or rear view of the lens detac ed.

F ig. 3 is an enlarged fragmentarycrosssection on'the line 3-3 of Fig. 2.

Referring now more particularlyto the characters of reference on the drawings, the numeral l denotes in general a headlight, having the usual reflectory 2 and centrally located lamp 3.

My improved lenscomprises a plain glass discrl held in place by the usual-clamping rim 5 'of the headlight.- Y

0n the inner face of the disc is a flat opaque plate 6, preferably of thin sheet metal. This plate is located on thefupper half of the disc, though extending slightly vbelow the horizontal center line thereof,

whichis also in the central plane of the lamp 3. n

A portion of said plate, yfrom its lower edge upwardly for a certain distance, is cut away as at 7, the sides of said opening being vertical and'equal distances on each side of the vert-ical center line of the' lamp,

while the upper edge is preferably curvedA on an arc whose center is below the center of the disc and therefore hasr a greater radius than the disc. A short flange 8 projects inwardly from the plate and follows the outline of the opening 7.

Projecting inwardly from the plate and disc to a point adjacent the reflector 2 is a hood 9, following the three sides of the opening 7 and secured to the plate by fastening onto the flange 8 by welding or any other similar means. The sides of the hood are straight and parallel to each other, while the top'is curved the same as the upper edge of the opening 7 and slopes upwardly and rearwardly from said opening to its termination adjacent the reflector 2.

In order to mount the plate 6 onto the disc 4l so that an even thickness all around the rim of the disc will be had, I extend the plate around the lower half of the disc adjacent the periphery thereof in the form of a narrow strip or ring l0. The plate and strip are then permanently secured onto the glass by any suitable means, such as a circular strip or gasket of tape ll or other fabric, glued on both sides, which is interposed between the metal member and the glass, and the three parts then firmly pressed together. rIhis operation is done in the factory, so that the buyer purchases the lens structurev as a single unit, ready to be installed in the same manner as an ordinary glass lens.

The inner surfaces'of the plate and hood are dulled so as to kill any reflecting power they may have, as by aluminum paint or otherwise.,

By the use of this opaque plate, in ,connec-y tion with the hood or light-well 9, into which the lamp 3 of course projects, I have found from extensive trials in actua-l practice that a very fine light on the road is obtained, both ahead of and to one side Vof the headlight, and all glare above the horizontal center of the lamp, is entirely eliminated.

From the foregoing description it will be readily seen that I have vproduced such a device as substantially fulfills the objects of the invention as set forth herein.

lVhile this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from theA spirit of the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is k 1. VA lens for headlights including an opaque plate mounted in front of and above the horizontal center line'of the lamp of the headlight, said plate having a transverselyV central opening extendingupwardly from the loweredge thereof, anda hood around said opening extending inwardly of the plate to and about the lamp, said hood being open along the bottom.

2. A lens for headlights including an opaque'plate mounted in front of and above l,

the horizontal center line of the lamp of the headlight, said plate having a transversely central opening extending upwardly from the lower edge thereof, and a hood around saidy opening extending inwardly of the plate to and about the lamp, the sides of said hood being parallel to each other while the upper face of the hood slopes upwardly towards the rear.4

` 3. A lens for headlights including an opaque plate mounted in front of and above the horizontal center line of the lamp of the headlight, said plate having a transversely central opening extending upwardly from the lower edge thereof, and a hood around said opening extending inwardly of the plate to vand about the lamp, and terminating at its rear edges adjacent the reflector of the lamp, the inner surface of said hood being non-reflecting. n

41. A lens for headlights including an opaque plate-mounted in front of and above the horizontal center line of the lamp of the headlight, said plate having a transversely central opening extending upwardly from the lower edge thereof, and a hood around said opening extending inwardly of 'the plate to and about the lamp, the sides of said hood being parallel to each other while the upper face of the hood slopes upwardly towards the rear, and is curved on an arc whose center 1s below the plane of the lamp. In testimony whereof I aliix my signature.

BERTRAM S. VRIGHT. 

